The breeds of dogs in the world are diverse, and a large number of recent genetic studies have shown that there are around 450 species of dogs in existence. Scientists have determined through research that the ancestor of dogs is wolves. Humans have been raising dogs since about 100,000 years ago, and selectively used different kinds of dogs for different purposes. For example, the use of petite dogs for fox or rabbit hunting, and the use of tall dogs to guard the herd, etc.

According to different bloodlines, dogs can be divided into:

Purebred dogs: purebred dogs are more graceful in appearance and well-proportioned, and are more suitable for indoor entertainment or special breeding purposes; And purebred dogs have been improved over the years, and according to their different breeds, their personality, function, and body shape also have their own characteristics.

Mongrels: Most people think that mongrels are more resistant and easier to keep.

At present, there are about 400 kinds of famous dogs with pure blood in the world. Among them, more than 100 kinds of famous dogs are liked and recognized by people.

Our country has also cultivated more than ten kinds of famous dogs, such as: Pekingese, Pug (axe dog), Chow Chowdog, pet Chinese dog, pet Chinese dog, Shi Tzu (Chinese Lion Dog), Chinese Crested, Pet Chinese Retriever, Shar Pei , pet Chinese Mastiff, etc.

According to different functions, dogs can be divided into:

Rescue dogs: such as Saint Bernard dogs etc.

Shepherd dogs: such as wolf dogs, sheepdogs, St. Bernard dogs, etc.

Hunting dogs: such as English hounds, English pinschers, medium Japanese dogs, etc.

Military and police dogs: such as Doberman, wolf dog, Boxer  etc.

Racing dogs: such as Soviet Russian Shepherds, etc.

Pitbull: such as Bull, Tosa, Pitbull, etc.

Guardian dogs: such as wolf dogs, bulldogs, boxing lion dogs, etc.

Guide dogs: such as golden retrievers, wolf dogs.

Toy dogs: such as DachshundDog, Poodle, Spitz, Chihuahua, Yorkshire, Pekingese, Pomeranian, Maltese

, Butterfly and other small and super small dogs.

The following is a detailed introduction to several common species:

1. Great PyreneesGreat Pyrenees

If you Great Pyrenees wants a dog:

? Very large like a polar bear

? Dignified, stable and mature, even a bit clumsy

? Laid-back most of the time Feel free to stay at home in peace

? Have a strong disposition and ability to protect your property

? Willing to receive moderate training

If you don't want to Ask for a dog:

? takes up a lot of space

? is so heavy that it can even lie on your lap leaning against you or on your feet

? When home alone for too long, there is a certain amount of disruptive behavior.

? Needs to be kept out of social and other dogs, intimidating and aggressive behavior.

? Aggressive behavior towards animals that are not part of the home.

? It needs a responsible and stable owner, who has a strong sense of belonging and loyalty to its owner, and cannot easily change the owner.

? If kept in the yard, please provide a fence of more than 1.8 meters to prevent getting lost.

? Muffled growl at night.

? Heavy hair loss.

If you want a big white bear, you need to consider:

1. Provide proper exercise. Puppies need enough exercise to keep them lean and healthy, so as not to be overweight and damage the ligaments of the joints and bones. Adult dogs need more exercise to stay lean, but hot flashes should be avoided to prevent overheating. If you don't exercise enough or spend too much time alone, you're going to be unruly.

2. Provide adequate social interaction. Requires contact with friendly strangers and animals to help it distinguish between good and bad people to reduce vigilance.

3. If there are children in the family, it is not recommended to raise them, because the Pyrenees before the age of three are energetic and often run around, posing a safety hazard to the children.

4. Will want to dominate or attack strange dogs. It doesn't get along well with cats either.

5. Heavy hair loss, even in your food, make sure you tolerate it.

6. Loyalty to the master makes it difficult to be raised and trained by others.

7. If you can't train it to respect you, it will become wanting to control you, and you must let it know that your orders need to be strictly obeyed and carried out consistently, without any compromise.

8. Unless you live in a single-family villa, don't put it in the yard, or its noise will make you the enemy of the community.

9. Frankly speaking, it is not a dog that can be controlled by a person with less ability.

Second, Border Collie Border Collie

If you want a dog:

? Medium sized dog

? Good looking, easy-care coat

? Well-built

? Very versatile with good training, learn to do Almost anything

? Hourly playing games with you

If you don't want a dog:

? An extreme athlete, It even corners you with acts of destruction and obsession without offering plenty of movement and creative play to vent its near-infinite energy.

? Has a strong urge to chase and bite objects in motion. Such as: joggers, children, bicycles, other animals.

? Has separation anxiety, calls and destructive behavior if left alone for too long.

? Timid or suspicious when not socializing enough or approaching strangers.

? Hair loss

? Serious health problems.

If you want one, you need to consider:

1. Provide enough exercise and stimulating games. They must be kept busy with activities that interest them or they can become lawless, such as destructive chewing and barking. The Frontier Chew is known for its destructive power, ripping out couch padding and piling your yard into giant craters on the moon. Recommendation: If you just want a house pet and don't want to spend the time and energy running, hiking, biking, swimming, or sheep herding, and don't want to take it to show jumping competitions or stalking, this breed is not recommended. Frontiers have never had a tendency to be a simple house pet, and their work behaviors (chasing, biting, prying, barking) are not suitable for ordinary domestic environments. These natures can only be solved by finding appropriate cathartic movements for them, and attempts to simply oppress them are ineffective.

2. Chase and track any moving target involuntarily. Unfortunately some borders even hunt small animals including cats. If there are elderly, children, and the infirm at home, border collies are not recommended. Before the age of two, the border has a strong desire to bite on moving humans.

3. Separation Anxiety Disorder. Compared to other breeds, the frontier needs a lot of companions and doesn't like being alone. They chew and bark when left alone for more than a passing hour. If you work during the day it is obviously not suitable for this kind of dog.

4. Provide adequate social activities. Frontiers need to be constantly confronted with different looks and sounds, otherwise their innate caution can make them timid and suspicious, making them difficult to get along with and defensive bites.

5. The Border is one of the smartest dogs and the most obedient dog in the world. Many frontiers are eager to please their masters and learn things very quickly. But many frontiers are very difficult to train for the average person.

o Some frontiers have a strong desire to manipulate, and it will use its intelligence to make you do what it wants you to do. (Sure enough, 8 year olds are cunning. Haha)

o Some borders would love to be your master, they are willful and high, and you have to prove to them that you have the ability to make them do things.

o Some borders are sensitive, and if you correct them too harshly, they may refuse to listen to you and become autistic.

o Finally, a lot of frontier training results are frustrating because they overreact to your voice and movements. They think they're prescient and are always trying to guess what you're going to do next, so when you just open your mouth or raise your hand, they make all kinds of actions based on their judgment. Their reluctance to sit there and wait for you to actually give a command before responding can drive you nuts. Suggestion: Find an experienced dog trainer who can force-train your dog to respect you.

6. Hair loss. Border shedding is more than you can imagine. When you touch it, its fur sheds from your hands and sticks to upholstery, clothes, and under furniture.

7. Serious health problems. Frontiers are at high risk for health conditions such as hip, eye, epilepsy. HIGHLY RECOMMENDED: Give the border fresh chicken, beef, rice, oats, fruits and vegetables. But this does not mean that it will eat human food! Vaccines are not completely harmless, and over-immunization can even increase the risk of disease. You need to record the date of immunization to develop an immunization plan.

8. Quite a few of the frontiers are runaway artists. Smart borders can even open locks.

Frankly, the Border is an excellent working dog, but a problem dog for the average family, and very few can provide what this breed really needs to behave satisfactorily and Have a good performance.

3. Toys VIP toy poodle

Toy VIP introverted but energetic, stubborn but peaceful, serious But sweet-looking, good-natured, and most importantly, it loves everyone. If you get a toy poodle, there is no guarantee that it will grow up to have the character described above. A considerable number of purebred puppies grow up with traits that do not meet normative requirements.

If you want a dog:

? Small, portable, elegant, lively and agile

? Curly coat that doesn't shed. The best of them don't even cause allergies.

? Variety of colors

? Lively

? One of the smartest and most attentive breeds, intuition helps it respond to your body language and Expressions suggestive

? Outstanding obedience and agility

? Usually polite to strangers and friendly to other animals.

If you don't want a dog:

? Careful observation is necessary to avoid highly nervous poodles.

? Becomes timid when not sufficiently exposed to social situations.

? Emotionally sensitive under stress and loud noises

? Monthly grooming of curls

? Barking

? Plenty of health issues

If you want one, you need to consider:

1. Unstable personality. People who breed and sell poodles don't care about the temperament of the canine. Canine experts believe that a large number of Poodles have neurotic behaviors, such as biting, extreme panic and hyperactivity.

2. Provide adequate social activities. Otherwise, their cautious nature will be difficult to get along with and will bite defensively.

3. Emotionally sensitive. Poodles are peaceful and sensitive dogs who need a harmonious family atmosphere. If there are people in the family who are easily excited to argue loudly or fight, the VIP will have neurotic behavior and be accompanied by gastrointestinal problems.

4. Love to dress up. Trim his curls every four to six weeks, and don't give him a funny look according to pet pictures.

5. The toy VIP will bark at new people and sounds, you have to stop it. Because it is easily frightened and barked, it should never be left alone in the yard.

Health Issues: VIPs can live very long lives, but also suffer from more joint and eye diseases.